Akademik

Rat Alley
   North out of Great Eastcheap. In Candlewick Ward (O. and M. 1677-Boyle, 1799).
   In O. and M. it extended north to St. Clement's Churchyard, but in Rocque, 1746, it does not connect with the Churchyard.
   Probably demolished early in the 19th century for the formation of King William Street.

A Dictionary of London. . 1918.